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3 years ago

I don't understand.

Mathematics

2 answers:

Furkat [3]3 years ago

7 0

Answer:

<h2>symmetric is the answer</h2>

Vedmedyk [2.9K]3 years ago

6 0

Answer:

the second choice took the test

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Which of the follong is the process of finding the factors of mathematical expression 2d²-8d

zhenek [66]

Answer:

2d(d - 4)

Step-by-step explanation:

Given

2d² - 8d ← factor out the common factor of 2d from each term

= 2d(d - 4) ← in factored form

6 0

3 years ago

Please help. will give brainliest to correct answer :)

e-lub [12.9K]

Answer:

(3,-5)

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

PLEASE HELP!!

erik [133]

$2.=c.\\\\2\sin4x\cos4x=2\sin(2\cdot4x)=2\sin8x\\\\Used:\\\sin2\alpha=2\sin\alpha\cos\alpha$

$1.=b.\\\\\csc x-\sin x=\dfrac{1}{\sin x}-\dfrac{\sin^2x}{\sin x}=\dfrac{1-\sin^2x}{\sin x}=\dfrac{\cos^2x}{\sin x}\\\\=\dfrac{\cos x\cos x}{\sin x}=\cos x\cdot\dfrac{\cos x}{\sin x}=\cos x\cot x\\\\Used:\\\csc x=\dfrac{1}{\sin x}\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\\\\\cot x=\dfrac{\cos x}{\sin x}$

$3.=a.\\\\\dfrac{\sin x-1}{\sin x+1}=\dfrac{\sin x-1}{\sin x+1}\cdot\dfrac{\sin x+1}{\sin x+1}=\dfrac{\sin^2x-1^2}{(\sin x+1)^2}=\dfrac{\sin^2x-1}{(\sin x+1)^2}\\\\=\dfrac{-(1-\sin^2x)}{(\sin x+1)^2}=\dfrac{-\cos^2x}{(\sin x+1)^2}\\\\Used:\\(a-b)(a+b)=a^2-b^2\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x$

8 0

3 years ago

Solve |y - 2|<10 {y|-8 < y < 12} {y|-12 < y < 8} {y|-8 < y < 8}

lukranit [14]

The answer is -8 < y < 12

3 0

3 years ago

A number x decreased by 3 is 5

zysi [14]

Answer:

Step-by-step explanation:

x - 3 = 5

x = 5 + 3

x = 8

Therefore, the number is 8.

5 0

3 years ago

I don't understand. ​

I don't understand.